A well head pumps oil into storage tanks at a well site about 60 kilometres east of field office during a tour of Gear Energy's well sites near Lloydminster, Saskatchewan August 27, 2015. Amid the corn and canola fields of eastern Saskatchewan, oil foreman Dwayne Roy is doing what Saudi Arabia and fellow OPEC producers are loath to do: shutting the taps on active wells. Inside a six-foot-square wooden shed that houses a basic hydraulic pump, the Gear Energy Ltd employee demonstrates how shutting down a conventional heavy oil well in this lesser-known Canadian oil patch is as simple as flipping a switch. His company has already done so hundreds of times this year, making the Lloydminster industry among the first in the world to yield in a global battle for oil market share that has sent crude prices tumbling to six-year lows. Picture taken August 27, 2015. REUTERS/Dan Riedlhuber